Just that really I ordered a sequinned Michael Kors one for a bargain price from the Outnet. Really like it but feels a bit dated somehow? Would you wear one to a party or evening drinks or are they a bit two years ago now?
I don't think they've had their day, the biggest thing for me in regards to clothes is, does it look good? Do you feel great in it? I have a few playsuits (short legged) and I feel great in them, there is no way I'm getting rid of them.
I think simple block colour ones look great. You could be feeling that post-Christmas thing I get of anything "party-ish" feels all wrong at this time of year. I feel like this about dressing up, anything other than subtle/lowkey make up every January! It's all too much when weather grotty and it seems everyone is ill with colds and aches. If you love your new outfit, just put it aside for a month and come back to it afresh.